Comments on: Exchange 2007 Transport Edge server in SMTP Relay mode http://www.chris-mohan.com/2008/02/exchange-2007-transport-edge-server-in-smtp-relay-mode/ Securing Windows networks or giving it a go in Australia... Tue, 27 Dec 2011 21:36:24 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Chris Mohan http://www.chris-mohan.com/2008/02/exchange-2007-transport-edge-server-in-smtp-relay-mode/comment-page-1/#comment-137 Chris Mohan Sat, 17 Oct 2009 08:27:54 +0000 http://www.chris-mohan.com/?p=20#comment-137 Hello John, I've cleaned up the post to make the fix section clearer and changed the name of the send receiver to avoid confusion. Hopefully. Without knowing your environment, I only can offer general advice :-) For the Unix machines, you can add their IP addresses in as allowed to relay to the internal Exchange Hub server. This isn't great but works. See here for details: http://msexchangeteam.com/archive/2006/12/28/432013.aspx If you have the money, you may want to look at Windows 2008 Federation Services http://technet.microsoft.com/en-us/library/dd391937(WS.10).aspx that would then allow Unix user to authenticate to AD and get rid of the ugly IP address work around. Hello John,

I’ve cleaned up the post to make the fix section clearer and changed the name of the send receiver to avoid confusion.

Hopefully.

Without knowing your environment, I only can offer general advice :-)
For the Unix machines, you can add their IP addresses in as allowed to relay to the internal Exchange Hub server. This isn’t great but works. See here for details:
http://msexchangeteam.com/archive/2006/12/28/432013.aspx

If you have the money, you may want to look at Windows 2008 Federation Services http://technet.microsoft.com/en-us/library/dd391937(WS.10).aspx that would then allow Unix user to authenticate to AD and get rid of the ugly IP address work around.

]]> By: johnh http://www.chris-mohan.com/2008/02/exchange-2007-transport-edge-server-in-smtp-relay-mode/comment-page-1/#comment-136 johnh Sat, 17 Oct 2009 05:46:16 +0000 http://www.chris-mohan.com/?p=20#comment-136 Perhaps you could clarify last statement about the "further leap". You stated that on the "Outbound to LAN receive connector clicked on the Exchange server in permission groups and Externally secured IN authentication". There are two things I don't understand here: 1. "in authentication" What does this mean? and, 2. You described "Outbound to LAN" as a send connector under "2 Send Connectors", but reference it as a receive connector in the last statement. I'm rather annoyed with Exchange 2007 because I can't allow our unix users to authenticate SMTP for relay. So what it looks like is I have to open up an open relay. Is there anyway (without putting our hub transport on the DMZ) to allow SMTP relay for authenticated users within our organization? I don't know how much directory information ADAM holds or if it would be a viable source for authentication because there's little to no information on how to setup Exchange as a valid relay for authenticated senders. Thanks for any help you can offer. Perhaps you could clarify last statement about the “further leap”. You stated that on the “Outbound to LAN receive connector clicked on the Exchange server in permission groups and Externally secured IN authentication”. There are two things I don’t understand here:
1. “in authentication” What does this mean?
and,
2. You described “Outbound to LAN” as a send connector under “2 Send Connectors”, but reference it as a receive connector in the last statement.
I’m rather annoyed with Exchange 2007 because I can’t allow our unix users to authenticate SMTP for relay. So what it looks like is I have to open up an open relay. Is there anyway (without putting our hub transport on the DMZ) to allow SMTP relay for authenticated users within our organization? I don’t know how much directory information ADAM holds or if it would be a viable source for authentication because there’s little to no information on how to setup Exchange as a valid relay for authenticated senders.

Thanks for any help you can offer.

]]> By: Gyorgy Kaposvari http://www.chris-mohan.com/2008/02/exchange-2007-transport-edge-server-in-smtp-relay-mode/comment-page-1/#comment-11 Gyorgy Kaposvari Mon, 14 Apr 2008 09:10:10 +0000 http://www.chris-mohan.com/?p=20#comment-11 I'm glad to found this page, it contains the solution of my problem. Thanks I’m glad to found this page, it contains the solution of my problem.
Thanks

]]> By: My Domains » Blog Archive » Exchange 2007 Transport Edge server in SMTP Relay mode http://www.chris-mohan.com/2008/02/exchange-2007-transport-edge-server-in-smtp-relay-mode/comment-page-1/#comment-3 My Domains » Blog Archive » Exchange 2007 Transport Edge server in SMTP Relay mode Mon, 25 Feb 2008 14:35:56 +0000 http://www.chris-mohan.com/?p=20#comment-3 [...] Original post by Security for a day [...] [...] Original post by Security for a day [...]

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